WO2004033009A1 - Inhaler for powdery, in particular, medical substances - Google Patents
Inhaler for powdery, in particular, medical substances Download PDFInfo
- Publication number
- WO2004033009A1 WO2004033009A1 PCT/EP2002/010353 EP0210353W WO2004033009A1 WO 2004033009 A1 WO2004033009 A1 WO 2004033009A1 EP 0210353 W EP0210353 W EP 0210353W WO 2004033009 A1 WO2004033009 A1 WO 2004033009A1
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- WO
- WIPO (PCT)
- Prior art keywords
- inhaler
- particular according
- inhaler according
- rotating part
- mandrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0065—Inhalators with dosage or measuring devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0001—Details of inhalators; Constructional features thereof
- A61M15/0005—Details of inhalators; Constructional features thereof with means for agitating the medicament
- A61M15/0006—Details of inhalators; Constructional features thereof with means for agitating the medicament using rotating means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/06—Solids
- A61M2202/064—Powder
Definitions
- the invention relates to an inhaler for powdery, in particular medicinal substances, with a suction air duct leading to a mouthpiece, a storage chamber for the substance and a linearly moving dosing chamber for dividing a certain amount of substance from the storage chamber into the area of a transfer point the suction air flow.
- An inhaler of this type is known from DE-OS 40 27391.
- the amount of substance to be dispensed is transferred to the dosing chamber that can be moved out in a storage chamber that is directed downward.
- the delivery device is a linearly movable slide having this. Placed in the channel of the mouthpiece, a rear space of the dosing chamber docks to an air volume stored in a piston / cylinder unit. The air volume is suddenly released and released while exercising the inhalation in the sense of a suction air stream. The mechanically flow-assisted suction stroke clears the dosing chamber in an emptying manner.
- the compressed air discharge to be triggered by the negative pressure requires a considerable amount of construction work; the sudden blast of air is at least very difficult to get used to for most patients.
- the object of the invention is to design an inhaler of the generic type in a structurally simple manner in such a way that the addition of an external air flow is dispensable, but nevertheless there is a residue-free discharge of a reproducible subset.
- the metering chamber be designed as a transverse bore of a dome that can be displaced depending on the cap.
- the ready-to-dispense position is, as it were, accomplished automatically, simply by practicing the usual handling of closing and opening.
- the preferably continuous cross hole can be cleared from two sides.
- a particularly effective measure results from a conical cross hole.
- the divided amount of substance is even more quickly transferred from the far end to the suction air flow via the component.
- it is important that the metering chamber is assigned an air passage that adjoins the suction air flow.
- the invention proposes that the air passages are formed on a pot-shaped rotating part which guides the mandrel and are in flow connection with air inlets on the outer wall of a mouthpiece.
- the corresponding air inlets are placed on the wall side of the inhaler in such a way that they can neither be held shut by the lips of the user, nor by the gripping hand, which encompasses the rod-shaped body of the inhaler.
- a minimization of the risk of locking is also provided by the formation of several, spaced-apart air inlets.
- the procedure is further such that the air passages are arranged axially offset from the air inlets closer to the mouthpiece. This results in an initially opposite flow path.
- the rotating part with its pot bottom forms the ceiling of the storage chamber, the center of which has a guide opening for the mandrel functioning as a plunger slide.
- the bottom of the pot has a double function: middle or immediate lid and guide hole for the mandrel.
- the mandrel which is pointed at the end in the plunging direction in the manner of a screwdriver blade, is rotationally connected to the rotating part via radial wings.
- the cutting-like blade achieved in this way in addition to an effective loosening effect in the central area, also favors the dipping of the dome into the powder lake and, on the other hand, there is a welcome support of the dome against the turned part, and which further makes it possible to maintain the alignment of the air outlets on the metering chamber.
- the necessary linear relative movement of the mandrel and the rotating part with respect to one another is achieved in a simple manner in that the cup wall of the pot-shaped rotating part has axial guide slots in which the wings guide.
- This solution is further characterized by a draft limiting stop of the dome provided by the mouthpiece, defining the readiness for emptying of the dosing chamber, which with its base wall section provides the transfer point.
- the cap which is dependent on the cap, is further characterized by a docking point between the mandrel and the cap, located on the mouthpiece side and disengaging in the event of an overload.
- the rotating part has a rotor, to which a stator is assigned, with a blade effect which acts in the metering chamber when the rotating part is turned back.
- the feeding and also the density of the powder quantity in the dosing chamber can be kept equally.
- Turning back means unscrewing the cap and the associated loading effect of or onto the dosing chamber.
- the blade mechanism is formed by rotor blades that start from a ring disk of the bottom of the rotating part and are supported by webs.
- the latter have a lancet or crescent shape.
- the medical substance adhering to a carrier for example, is not rubbed off by the carrier. Then it is provided that the flanks lie in a common diametral.
- the other structural design is also effective for the blades, but is gentle on medication, in that the rotor engages under the stator in such a way that the stator is designed as a projection which projects radially inwards from the inner wall of the storage chamber and extends freely into an orbit of the rotor.
- the stator has a trapezoidal outline and is rooted with its base in the inner wall of the pantry.
- the orbit is axially limited by the underside of the ring disk of the rotating part and the inside of the rotor blades facing it.
- an embodiment that is easy to assign is that the stator lies in outline under the quarter sector that leaves an intermediate space between two rotor blades. This results in a sufficiently large assembly opening.
- the guide opening in the rotating part is formed by a sealing bushing which surrounds the cylindrical section of the mandrel. It can be rubber or rubber-like material. Powdery substance that settles on the shaft of the dome is stripped through the sealing bush. There is no falsification of the dose ready for dispensing.
- An equally seal-related measure of the dispenser mechanism results from a sealing ring inserted between the inner wall of the storage chamber and the rotating part with pretension. Rubber or rubber-like material can also be used here. Then it is provided that the sealing ring is snapped into the ring grooves of both parts, the ring groove on the rotating part being realized as a V-shaped notch groove and the ring groove of the storage chamber having the same height being semicircular.
- the former also acts as a rotary guide for the turned part.
- the closure cap be designed as a screw cap and interact with the mouthpiece via rotary driving means. The latter are claw-like and disengage when the thread is separated.
- FIG. 4 shows the inhaler in section as in FIG. 1, but with the closure cap removed and thus embodying the ready-for-removal position
- FIG. 5 shows an enlargement of FIG. 1 with the mandrel in an intermediate position, the metering chamber extending at the level of the stator
- FIG. 7 is a detailed view of the rotating part with rotor and stator in a frog perspective, showing the cutting-like shape of the lower mandrel end,
- FIG. 8 shows an exploded view of the parts forming the inhaler, with respect to all parts in vertical section and with respect to the dome in partial section.
- the inhaler 1 shown in the drawing is implemented as a conveniently portable, short-rod-shaped pocket device.
- a stepped, cylindrical housing 2 determines the shape.
- the cylindrical, tube-like housing 2 merges into an attached mouthpiece 3 on the head side of the inhaler 1. This is flattened to fit the mouth and can be protected by a cup-shaped cap 4.
- the closure cap 4 is realized as a screw cap. An internal thread 5 assigned to it engages in corresponding external thread 6 on the outer wall of the housing 2. A clip 7 is formed on the closure cap 4 in the attachment area of the mouthpiece 3.
- the end edge of the cup-shaped cap 4 stops and seals against an annular shoulder 8, achieved due to the above-mentioned shoulder of the cylindrical housing 2.
- the closure cap 4 Utilizing the axial screw stroke of the thread engagement 5/6, the closure cap 4 also functions as an actuating handle 9 for dispensing a powdery substance 10 in reproducible portions 10 ', which substance can be refilled in a storage chamber 11 of the housing 2.
- the dosing device conveying a partial amount 10 'to a transition point U located outside the storage chamber 11 is designated in its entirety by D.
- the meterable product it is a medicinal powdery substance 10, for example of the property that the suction body transportable basic body (lactose) carries the adhering, micronized pharmaceutical fine particles as a vehicle on the surface.
- the suction body transportable basic body lactose
- Downstream of the metering device D is a so-called dispersing area, in which a suction air flow S is generated by the user which exactly removed portion 10 'of the substance 10 in the transfer point Ü removes completely.
- the suction air duct leading to the mouthpiece 3 bears the reference number 12.
- a pot-shaped pressure base 13 forms the lower end of the storage chamber 11.
- the pressure base 13 is spring-loaded in the direction of the mouthpiece 3.
- the corresponding compression spring bears the reference number 14.
- the base end turn is supported on a bottom cap 15 closing the housing 2 there.
- the latter is in latching engagement with the section of the housing 2 with a larger cross section there.
- the corresponding latching collar 16 engages in a suitable annular groove in the housing 2.
- the head-side end turn of the prestressed compression spring 14 loads an inner shoulder 17 of a hollow piston 18 of the piston-shaped device 13/18.
- the stepped pot-shaped pressure plate 13 is snap-connected to the inner shoulder 17.
- the top edge of the pressure base 13 provides an annular lip 19 which, due to its rubber-elastic material, wipes the wall of the storage chamber 21 without loss.
- a standing pin 20 extends from the bottom cap 15 in a central position. It is hollow and, together with the hollow piston 18, forms a spring chamber 21 for the compression spring 14.
- the storage chamber 11 closes off with a pot-shaped rotating part 22. With its pot bottom, this forms the ceiling 23 of the storage chamber 11, which covers the housing 2.
- a guide opening 24 is left in the center of the ceiling 23.
- This central or direct guide opening 24 receives a mandrel 25 as the heart of the dosing device D.
- it functions as a linearly moving metering chamber 26 for the partial quantity 10 'to be excavated, providing a plunger slide. It moves in the longitudinal center axis xx of the essentially rotationally symmetrical inhaler 1.
- the mandrel 25 forms at its end facing away from the mouthpiece 3 a screwdriver blade-like taper. This has a loosening effect in relation to the lake made of powdery substance 10 due to the rotation of the dome 25 in the center area.
- the practically pointed roof-like blade 27 shows two mirror-symmetrical sloping flanks and connects to a cylindrical shaft of the dome 25 on the base side. The sloping flanks form an angle of approx. 60 °.
- the basic cylindrical cross section of the dome 25 is retained in the area of the blade 27 (see FIG. 7).
- the stroke of the linearly moving metering chamber 26 takes into account a locking of the cross section of the guide opening 24 with a doctoring or wiping action filling the metering chamber over the length of said opening 24.
- the mouthpiece end of the closure cap 4 forms a docking point 28 which disengages in the event of an overload between the mandrel 25 and the closure cap 4.
- the locking means on the closure cap side is a spring-loaded hook ring.
- the build-up of material forming a raster head is approximately lenticular.
- the lugs 29, or rather their spring tongues, are realized on a tube 32 which projects into the mouthpiece opening 3 'and extends from the inside of the cover cap 4. It is rooted in it.
- the mandrel 25 is rotatably connected to the rotating part 22 via radial wings 33 designed in the manner of spokes.
- the wings 33 engage with their free end sections, crossing the suction air channel 12, in axial guide slots 34 — three of the rotating part 22 already suffice.
- the guide slots 34 which are distributed at the same angle, are located on the inside of the pot wall 35 of the pot-shaped rotating part 22.
- the axial guide slots 34 are also of such a length that the powder-plunging plunging stroke of the dome 25 from a filling level in the storage chamber 11 to the transfer point U described above Cover 23 is guaranteed.
- the defined readiness for emptying of the dosing chamber 26 results from a tension limiting stop of the dome 25 provided by the mouthpiece 3. This is the front end of a wall of the mouthpiece 3 that is turned back, which thus closes the exit of the guide slots 34.
- the mouthpiece 3 engages via a jacket wall 37 anchoring on the neck of the housing 2.
- a locking point 38 between the two parts 2, 3. It can be an irreversible rest area 38.
- the ceiling 23 of the rotating part 22 is supported by an annular shoulder 39.
- the metering chamber 26 is realized as a transverse bore that runs essentially perpendicular to the longitudinal central axis xx. Transferred to the ready-to-empty position, the metering chamber 26 is in the effective range of the central suction air flow S.
- the metering chamber 26 is assigned an air passage 40 adjoining the suction air channel 12.
- The is formed in the pot wall 35 of the rotating part 22. These are radial bores. They extend near the bottom of the pot-shaped rotating part 22, that is to say at the height or just above the top of the ceiling 23.
- Such an air passage 40 can be seen in front of both open ends of the metering chamber 26 at a radial distance.
- an air passage 40 of smaller diameter than this is associated with the end of the larger clear diameter of the metering chamber 26 formed by a conical transverse bore, and an air passage 40 of larger diameter than this is associated with the end of the smaller clear diameter of the metering chamber 26.
- the passages 40 formed on the pot-shaped rotating part 22, which seals the mandrel 25, are still connected to the air inlets 42 by radial spacing via a rear annular space 41. They are also designed as bores and connect to the atmosphere. Said annular space 41 is located between the outside of the pot wall 35 of the pot-shaped rotating part 22 and the inside of the jacket wall 37 of the mouthpiece 3.
- the air outlets 40 can be seen to be arranged axially offset from the air inlets 42.
- the air inlets 42 are closer to the mouthpiece 3.
- the spatial spacing described leads to an initially opposing inflow of sucked-in air with connection to the main suction air flow S.
- the corresponding entrainment is also present with respect to the dome 25, which is secured against radial rotation via the wings 33, so that there is no adjustment of the axis of the dosing chamber 26 to the air dur 40 comes.
- the jacket wall 37 could be included in the rotational fixation by means of positive connection means.
- a frictional entrainment is sufficient, for example via the annular collar 43 which is to be held towards the annular space 41 towards the mouth-side end. It starts from the jacket wall of the pot wall 35 and lies with its edge on the inside of the jacket wall 37 of the mouthpiece 3. 1 and 4 can be seen, the rotational entrainment between the mouthpiece 3 and the screw-off sealing cap 4 takes place by means of a claw coupling 44 between the two.
- This consists of longitudinal teeth 45 on the outer wall 37 of the mouthpiece 3, which longitudinal teeth engage in corresponding tooth gaps 46 on the inside of the closure cap 43.
- Two rotor blades 47 form a blade. They have a basically sickle-shaped outline. The two rotor blades 47 are diametrically opposed with respect to the longitudinal central axis x-x of the inhaler 1. They are held on axially extending webs 48 spaced from the center. They are rooted in the underside of an arm or an annular disk 49 of the rotating part 22 which represents the rotor R.
- the free-standing rotor blades 47 projecting from the floor or the ceiling 23 of the rotating part 22 on the storage chamber side are positioned in such a diametrical opposite position that they are sufficiently spaced in the circumferential direction. Geometrically, they essentially occupy a quarter sector of the circular cross section of the storage chamber 11. Reference is made to FIG. 6.
- the two rotor blades 47 each have a flank 50 which is aligned radially with respect to the center of the mandrel 25, and each have a blade flank 51 lying at right angles thereto.
- the flank 51 remains at a gap leaving the gap to the lateral wall of the mandrel 25.
- the gap bears the symbol 52 avoided.
- the flanks 50 can be seen diametrically.
- the common diametral of the flanks 50 is designated yy in FIG. 6.
- the spatially parallel blade flanks 51 extend perpendicular to the diametral yy and parallel to the transverse bore axis zz of the metering chamber 26, which in turn coincides with the bore axis of the air passages 40.
- the annular disc 49 or two arms, in which the rotor blades 47 are rooted, continues via an annular wall 53 into the ceiling 23 of the rotating part 22.
- the rotor R engages under the stator St in such a way that the stator St is designed as a projection which projects radially inward from the inner wall of the storage chamber 11 and extends freely into an orbit 54 of the rotor R.
- the orbit 54 is axially delimited by the underside of the annular disk 49 of the rotating part 22 and the inside of the rotor blades 47 facing it.
- the axial distance forming the orbit is significantly larger than the thickness of the stator St, that is to say the projection, measured in this direction. In this way, too, there is no mechanical stress in relation to the friction-sensitive, powdery substance 10 to be dispensed.
- the stator St has a trapezoidal outline. Its circular arc-shaped base is rooted in the inner wall of the storage chamber 11. The base is dimensioned such that the stator St, which tapers radially inward in terms of area, lies in outline under the quarter sector leaving an intermediate space 55 between two rotor blades 47. As can be seen from FIG. 6, this also provides a sufficient assembly opening for the stator to latch into the orbit 54.
- the radial projection of the stator St inwards is of such a radial length that the plateau of the trapezoid also ends in a gap-forming manner in front of the outside of the web 48.
- FIG. 6 The blade effect is clear from FIG. 6 when the arrows are observed.
- Arrow a indicates the direction of rotation of the rotating part 22.
- the blade flanks 51 thus function as the breast pushing the powder in front of it.
- Arrow b shows the approximate The blade direction with respect to the larger clear end of the metering chamber 26.
- Arrow c indicates the corresponding effect on the other rotor blade 47, here also with regard to the blade effect of the blade flank 51.
- the stator St stands, as it were, as a stationary chicane in the path of the orbit 54
- the pulverulent substance 10 is rapidly displaced by the blade flank 51 which is closer to the trapezoidal flank which acts as a deflector, so that, as already stated, the same filling conditions always occur.
- the metering chamber 26 moves in several rotations through the zone of the metering device D until it has reached the top of the ceiling 23 of the pot-shaped rotating part 22 with its transfer point U.
- the latter is not formed directly by the rotating part 22, but by a sealing bush 56 lining this passage point.
- the latter is made of rubber-elastic material and is in the ceiling 23 held in place via latching means 57. In terms of level, it extends up to the top of the ring disk 49.
- the other annular groove 60 which is at the same height, is located on the inside of the housing 2, specifically in the upper entrance area of the storage chamber 11.
- the cross-section of the circumferential groove 60 is semicircular.
- a rotationally symmetrical run-up slope 61 upstream of the annular groove 60 makes installation easier.
- the mandrel 25 designed as a lifting mandrel can be varied in terms of the volume of its metering chamber 26, i. H. the heart of the metering device D only needs to be exchanged in order to achieve a different, exactly reproducible metering of partial quantities 10 '.
- the piston-like pressure floor 13 is not impaired in its mobility with respect to the cylinder space, provided by the central section of the housing 2, since the housing there has an air compensation opening 62 located in the back of the annular lip 19.
- the pot-shaped pressure plate 13 has a central indentation facing away from the storage chamber 11. The inside is of such depth that the end section of the mandrel 25 projecting axially downward in the basic position accommodates therein.
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Abstract
Description
INHALATOR FÜR PULVERFORMIGΞ , INSBESONDERE MEDIZINISCHE SUBSTANZEN INHALATOR FOR POWDEREDΞ, IN PARTICULAR MEDICAL SUBSTANCES
Die Erfindung bezieht sich auf einen Inhalator für pulverf örmige, insbesondere medizinische Substanzen, mit einem zu einem Mundstück führenden Saugluft- kanal, ferner einer Vorratskammer für die Substanz und einer linear bewegten Dosierkammer zum Abteilen einer bestimmten Substanzmenge aus der Vorratskammer in den Bereich einer Übergabestelle an den Saugluftstrom.The invention relates to an inhaler for powdery, in particular medicinal substances, with a suction air duct leading to a mouthpiece, a storage chamber for the substance and a linearly moving dosing chamber for dividing a certain amount of substance from the storage chamber into the area of a transfer point the suction air flow.
Ein Inhalator dieser Art ist durch die DE-OS 40 27391 bekannt. Die auszuge- bende Substanzmenge wird in einer nach unten austrichternden Vorratskammer an die herausbewegbare Dosierkammer übergeben. Austräger ist ein diese aufweisender, linear beweglicher Schieber. In den Kanal des Mundstückes gestellt, dockt ein rückwärtiger Raum der Dosierkammer an ein in einer Kolben/Zylinder-Einheit gespeichertes Luftvolumen an. Unter Ausübung der Ein- atmung im Sinne eines Saugluftstroiries wird das Luftvolumen schlagartig ausgelöst und freigegeben. Der so mechanisch strömungsunterstützte Saughub räumt die Dosierkammer entleerend frei. Der durch den Unterdruck auszulösende Druckluftausstoß erfordert einen erheblichen Bauaufwand; auch ist der plötzlich auftretende Luftstoß für die meisten Patienten zumindest sehr ge- wöhnungsbedürftig.An inhaler of this type is known from DE-OS 40 27391. The amount of substance to be dispensed is transferred to the dosing chamber that can be moved out in a storage chamber that is directed downward. The delivery device is a linearly movable slide having this. Placed in the channel of the mouthpiece, a rear space of the dosing chamber docks to an air volume stored in a piston / cylinder unit. The air volume is suddenly released and released while exercising the inhalation in the sense of a suction air stream. The mechanically flow-assisted suction stroke clears the dosing chamber in an emptying manner. The compressed air discharge to be triggered by the negative pressure requires a considerable amount of construction work; the sudden blast of air is at least very difficult to get used to for most patients.
Aufgabe der Erfindung ist es, einen gattungsgemäßen Inhalator in baulich einfacher Weise so auszubilden, dass die Beigabe eines Fremdluftstromes verzichtbar wird, trotzdem aber ein restfreier Austrag einer reproduzierbaren Teilmenge gegeben ist.The object of the invention is to design an inhaler of the generic type in a structurally simple manner in such a way that the addition of an external air flow is dispensable, but nevertheless there is a residue-free discharge of a reproducible subset.
Diese Aufgabe ist zunächst und im Wesentlichen bei einem Inhalator mit den Merkmalen des Anspruchs 1 gelöst, wobei darauf abgestellt ist, dass eine in Erstreckungsrichtung der Dosierkammer liegende Komponente des Saugluftstromes die Dosierkammer entleert.This object is achieved first and foremost in an inhaler with the features of claim 1, the aim being that an in Direction of extent of the metering chamber lying component of the suction air flow emptied the metering chamber.
Zufolge solcher Ausgestaltung ist ein baulich einfacher, funktionssicherer In- halator erzielt. Die Einatmung erbringt einen so ausreichenden Austragsunter- druck, dass die Dosierkammer einwandfrei entleert wird. Der Darbietungsbereich an die Strömungskomponente liegt äußerst austragswirksam. Die linear bewegte Dosierkammer arbeitet schöpfend und liegt mit Erreichen der Übergabestelle so vom Vorratsbereich der pulverf örmigen Substanz abgetrennt, dass nichts mehr zurückfallen kann. Der Stand der Technik versucht, diese möglicherweise zu ungleichen Chargen führende Quelle durch den Einsatz eines Siebes zum rückwärtigen Raum hin, also zum zugehenden Fremdluftstrom hin, zu verhindern.As a result of such an embodiment, a structurally simple, functionally reliable inhaler is achieved. Inhalation provides sufficient vacuum to discharge the dosing chamber properly. The performance area to the flow component is extremely effective. The linearly moving dosing chamber works creatively and, when it reaches the transfer point, is separated from the storage area of the powdery substance in such a way that nothing can fall behind. The prior art attempts to prevent this source, which may lead to unequal batches, by using a sieve towards the rear space, that is to say toward the incoming external air flow.
Die Gegenstände der weiteren Ansprüche sind nachstehend in Bezug zu dem Gegenstand des Anspruchs 1 erläutert, können aber auch in ihrer unabhängigen Formulierung von Bedeutung sein. So wird weiter vorgeschlagen, dass die Dosierkammer als Querbohrung eines Verschlusskappen-abhängig verlagerbaren Domes gestaltet ist. Die Ausgabe-Bereitschaftsstellung wird so gleichsam automatisch bewerkstelligt, einfach in Ausübung der gewohnten Handhabung des Schließens und Öffnens. Die bevorzugt durchgehende Querbohrung ist von zwei Seiten her ausräumbar. Eine besonders wirksame Maßnahme ergibt sich durch eine konische Querbohrung. Die abgeteilte Substanzmenge wird vom weitenden Ende her sogar rascher via Komponente an den Saugluftstrom übergeben. Zur Erlangung einer in die Erstreckungsrichtung der Dosierkammer leitenden Luftführung der Komponente ist es von Bedeutung, dass der Dosierkammer ein an den Saugluftstrom anschließender Luftdurchlass zugeordnet ist. Das ergibt gleichsam eine lokalisierte Zone des Unterdrucks. Günstig ist, beiden offenen Enden der Dosierkammer je ein Luftdurchlass vorzulagern. Im Falle der konischen Querbohrung wird zweckmäßig weiter so vorgegangen, dass dem Ende größeren lichten Durchmessers der Dosierkammer ein Luftdurchlass kleineren Durchmessers als dieser zugeordnet ist und dem Ende kleineren lichten Durchmessers ein Luftdurchlass größeren Durchmessers als dieser. Von der weitenden Seite her wird so zufolge größeren Unterdrucks vorrangig ausgeräumt, also gerade in der Richtung, in der durch die sich entsprechend weitende Wandung der Dosierkammer kein Reibungshindernis vorliegt. Sodann bringt die Erfindung in Vorschlag, dass die Luftdurchlässe an einem topfförmigen, den Dorn führenden Drehteil ausgebildet sind und mit Luftein- lassen der Mantelwand eines Mundstückes in Strömungsverbindung stehen. Die entsprechenden Luf teinlässe sind mantelwandseitig des Inhalators so platziert, dass sie weder von den Lippen des Benutzers zugehalten werden können, noch durch die Greifhand, die den stabf örmigen Körper des Inhalators umf asst. Eine Minimierung der Gefahr eines Zuhaltens ist überdies durch die Ausbil- düng mehrerer, voneinander beabstandeter Lufteinlässe gegeben. Im Sinne einer guten Verteilung der pulverf örmigen Substanz an den Saugluftstrom ist weiter so vorgegangen, dass die Luftdurchlässe axial versetzt zu den dem Mundstück näherliegenden Lufteinlässen angeordnet sind. Das ergibt einen zunächst gegenläufigen Strömungsweg. Zudem erweist es sich als vorteilhaft, dass das Drehteil mit seinem Topfboden die Decke der Vorratskammer bildet, dessen Zentrum eine Führungsöffnung für den als Tauch-Schieber fungierenden Dorn aufweist. Der Topfboden erhält so eine Doppelfunktion: Mittel- oder unmittelbarer Deckel und Führungsloch für den Dorn. Ferner besteht ein vorteilhaftes Merkmal darin, dass der in Tauchrichtung endseitig schraubendre- herklingenartig angespitzte Dorn über radiale Flügel mit dem Drehteil drehverbunden ist. Zum einen ist durch die so erzielte schneidenartige Klinge neben einem wirksamen Dreh- Auflockerungseffekt im Zentrumsbereich zugleich das Eintauchen des Domes in den Pulver see begünstigt und zum anderen besteht eine willkommene Abstützung des Domes gegenüber dem Drehteil, und was weiter die Ausrichtung der Luftdurchlässe auf die Dosierkammer beibehaltbar macht. Die notwendige lineare Relativbewegung von Dorn und Drehteil zueinander wird mit einfachen Mitteln dadurch erreicht, dass die Topfwand des topff örmigen Drehteils axiale Führungsschlitze aufweist, in denen sich die Flügel führen. Diese Lösung ist weiter gekennzeichnet durch einen vom Mundstück gestellten Zugbegrenzungsanschlag des Domes, definierend die Entleerungsbereitschaftsstellung der Dosierkammer, die mit ihrem Basiswandabschnitt die Übergabestelle stellt. Die Verschlusskappen-abhängige Lagerung des Domes ist weiter gekennzeichnet durch eine mundstückseitig liegende, bei Überlast ausklinkende Andockstelle zwischen Dorn und Verschlusskappe.The subject matter of the further claims are explained below in relation to the subject matter of claim 1, but can also be of importance in their independent formulation. It is further proposed that the metering chamber be designed as a transverse bore of a dome that can be displaced depending on the cap. The ready-to-dispense position is, as it were, accomplished automatically, simply by practicing the usual handling of closing and opening. The preferably continuous cross hole can be cleared from two sides. A particularly effective measure results from a conical cross hole. The divided amount of substance is even more quickly transferred from the far end to the suction air flow via the component. In order to obtain an air duct of the component that leads in the direction of extension of the metering chamber, it is important that the metering chamber is assigned an air passage that adjoins the suction air flow. This results in a localized zone of negative pressure. It is favorable to have an air outlet in front of both open ends of the metering chamber. in the In the case of the conical transverse bore, the procedure is expediently further such that an air passage of smaller diameter than this is assigned to the end of a larger clear diameter of the metering chamber and an air passage of larger diameter than this is assigned to the end of the smaller clear diameter. From the widening side, greater negative pressure is primarily cleared out, that is to say in the direction in which there is no obstacle to friction due to the correspondingly widening wall of the metering chamber. The invention then proposes that the air passages are formed on a pot-shaped rotating part which guides the mandrel and are in flow connection with air inlets on the outer wall of a mouthpiece. The corresponding air inlets are placed on the wall side of the inhaler in such a way that they can neither be held shut by the lips of the user, nor by the gripping hand, which encompasses the rod-shaped body of the inhaler. A minimization of the risk of locking is also provided by the formation of several, spaced-apart air inlets. In the sense of a good distribution of the powdery substance to the suction air flow, the procedure is further such that the air passages are arranged axially offset from the air inlets closer to the mouthpiece. This results in an initially opposite flow path. In addition, it proves to be advantageous that the rotating part with its pot bottom forms the ceiling of the storage chamber, the center of which has a guide opening for the mandrel functioning as a plunger slide. The bottom of the pot has a double function: middle or immediate lid and guide hole for the mandrel. Another advantageous feature is that the mandrel, which is pointed at the end in the plunging direction in the manner of a screwdriver blade, is rotationally connected to the rotating part via radial wings. On the one hand, the cutting-like blade achieved in this way, in addition to an effective loosening effect in the central area, also favors the dipping of the dome into the powder lake and, on the other hand, there is a welcome support of the dome against the turned part, and which further makes it possible to maintain the alignment of the air outlets on the metering chamber. The necessary linear relative movement of the mandrel and the rotating part with respect to one another is achieved in a simple manner in that the cup wall of the pot-shaped rotating part has axial guide slots in which the wings guide. This solution is further characterized by a draft limiting stop of the dome provided by the mouthpiece, defining the readiness for emptying of the dosing chamber, which with its base wall section provides the transfer point. The cap, which is dependent on the cap, is further characterized by a docking point between the mandrel and the cap, located on the mouthpiece side and disengaging in the event of an overload.
Beim Wiederschließen des Inhalators ergibt sich im Gegenzug das erneute Andocken zwischen Dorn und Verschlusskappe. Eine Ausgestaltung von sogar eigenständiger Bedeutung verkörpert sich sodann darin, dass das Drehteil einen Rotor aufweist, dem ein Stator zugeordnet ist, mit bei Rückdrehen des Drehteils in die Dosierkammer eintragend wirkendem Schaufeleffekt. Hierüber ist das Nachbringen und auch die Dichte der Pulvermenge in der Dosierkammer gleich haltbar. Hinzu kommt ein im Umfeld gegebener Auflockerungsef- fekt, der das Stocken von Pulverpartien ausschließt. Rückdrehen meint Abschrauben der Verschlusskappe und die damit zusammenhängende Ladewir- kung der bzw. auf die Dosierkammer. Im Einzelnen ist das Schaufelwerk durch von einer Ringscheibe des Bodens des Drehteils ausgehenden, Steg getragenen Rotorblättern gebildet. Letztere weisen lanzetten- oder sichelförmigen Umriss auf. Es sind zwei diametral einander gegenüberliegende Rotorblätter realisiert. Baulich ist konkret weiter so vorgegangen, dass die Rotorblätter sich im We- sentlichen auf einem Viertelsektor erstrecken mit einer radial auf das Zentrum des Domes ausgerichteten Flanke und einer etwa rechtwinklig dazu liegenden Schaufelflanke in spaltbelassend tangierender Ausrichtung zum Dorn. Das schließt Quetschwirkstellen aus. Die bspw. an einem Träger anhaftende medizinische Substanz wird nicht von diesem abgerieben. Sodann ist vorgesehen, dass die Flanken in einer gemeinsamen Diametralen liegen. Auch die weitere bauliche Ausprägung ist schaufelwirksam, jedoch medikamentenschonend ausgebildet, indem der Rotor den Stator so untergreift, dass der Stator als von der Innenwand der Vorratskammer radial einwärts abragender, frei in eine Umlaufbahn des Rotors reichender Vorsprung ausgebildet ist. Der Stator weist trapezförmigen Umriss auf und wurzelt mit seiner Basis in der Innenwand der Vorratskammer. Die Umlaufbahn ist axial durch die Unterseite der Ringscheibe des Drehteils und die ihr zugewandte Innenseite der Rotorblätter begrenzt. Weiter besteht eine zuordnungsgünstige Ausgestaltung darin, dass der Stator umrissmäßig unter dem einen Zwischenraum zwischen zwei Rotorblättern belassenden Viertelsektor liegt. Das erbringt eine ausreichend große Montageöffnung. Sowohl dichtungs- als auch führungsmäßig vorteilhaft ist es, wenn die Führungsöffnung im Drehteil durch eine den zylindrischen Abschnitt des Dor- nes umfassende Dichtbuchse ausgebildet ist. Es kann sich um Gummi oder gummiähnliches Material handeln. Sich auf dem Schaft des Domes absetzende pulverförmige Substanz wird durch die Dichtbuchse abgestreift. Es kommt nicht zu einer Verfälschung der ausgabebereiten Dosis. Eine gleichfalls dich- tungsbezogene Maßnahme der Spendermechanik ergibt sich durch einen zwischen Innenwand der Vorratskammer und dem Drehteil mit Vorspannung ein- gesetzten Dichtring. Auch hier kann Gummi oder gummiartiges Material Verwendung finden. Sodann ist vorgesehen, dass der Dichtring in Ringnuten beider Teile passend eingeschnäppert ist, wobei die am Drehteil befindliche Ringnut als V-förmige Kerbnut realisiert und die höhengleich dazu liegende Ringnut der Vorratskammer halbrund ausgebildet ist. Erstere fungiert mit als Drehführung des Drehteils. Endlich wird vorgeschlagen, dass die Verschlusskappe als Schraubkappe ausgebildet ist und mit dem Mundstück über Drehmitnahmemittel zusammenwirkt. Letztere sind klauenkupplungsartig und treten bei Gewindetrennung außer Eingriff. Der Gegenstand der Erfindung ist nachstehend anhand eines zeichnerisch veranschaulichten Ausführungsbeispieles näher erläutert. Es zeigt:In return, when the inhaler is closed again, there is a renewed docking between the mandrel and the cap. An embodiment of even independent importance is then embodied in the fact that the rotating part has a rotor, to which a stator is assigned, with a blade effect which acts in the metering chamber when the rotating part is turned back. In this way, the feeding and also the density of the powder quantity in the dosing chamber can be kept equally. In addition, there is a loosening effect in the environment that prevents powder batches from sticking. Turning back means unscrewing the cap and the associated loading effect of or onto the dosing chamber. Specifically, the blade mechanism is formed by rotor blades that start from a ring disk of the bottom of the rotating part and are supported by webs. The latter have a lancet or crescent shape. There are two diametrically opposed rotor blades. In terms of construction, the process continued in such a way that the rotor blades essentially extend in a quarter sector with a flank oriented radially to the center of the dome and an approximately perpendicular blade flank in a gap-leaving tangent orientation to the mandrel. This excludes pinch points. The medical substance adhering to a carrier, for example, is not rubbed off by the carrier. Then it is provided that the flanks lie in a common diametral. The other structural design is also effective for the blades, but is gentle on medication, in that the rotor engages under the stator in such a way that the stator is designed as a projection which projects radially inwards from the inner wall of the storage chamber and extends freely into an orbit of the rotor. The stator has a trapezoidal outline and is rooted with its base in the inner wall of the pantry. The orbit is axially limited by the underside of the ring disk of the rotating part and the inside of the rotor blades facing it. Furthermore, an embodiment that is easy to assign is that the stator lies in outline under the quarter sector that leaves an intermediate space between two rotor blades. This results in a sufficiently large assembly opening. It is advantageous in terms of both sealing and guidance if the guide opening in the rotating part is formed by a sealing bushing which surrounds the cylindrical section of the mandrel. It can be rubber or rubber-like material. Powdery substance that settles on the shaft of the dome is stripped through the sealing bush. There is no falsification of the dose ready for dispensing. An equally seal-related measure of the dispenser mechanism results from a sealing ring inserted between the inner wall of the storage chamber and the rotating part with pretension. Rubber or rubber-like material can also be used here. Then it is provided that the sealing ring is snapped into the ring grooves of both parts, the ring groove on the rotating part being realized as a V-shaped notch groove and the ring groove of the storage chamber having the same height being semicircular. The former also acts as a rotary guide for the turned part. Finally, it is proposed that the closure cap be designed as a screw cap and interact with the mouthpiece via rotary driving means. The latter are claw-like and disengage when the thread is separated. The subject matter of the invention is explained in more detail below on the basis of an illustrative embodiment. It shows:
Fig. 1 den erfindungsgemäßen Inhalator im Vertikalschnitt, vergrößert, in kappenverschlossener Grundstellung,1 the inhaler according to the invention in vertical section, enlarged, in the cap-closed basic position,
Fig. 2 die Draufsicht hierzu,2 is a top view of this,
Fig. 3 den Inhalator in Seitenansicht,3 the inhaler in side view,
Fig. 4 den Inhalator im Schnitt wie Fig. 1, jedoch bei abgenommener Verschlusskappe und so die Entnahme-Bereitschaftsstellung verkörpernd,4 shows the inhaler in section as in FIG. 1, but with the closure cap removed and thus embodying the ready-for-removal position,
Fig. 5 eine Herausvergrößerung der Fig. 1 mit in einer Zwischenstellung be- findlichem Dorn, wobei sich die Dosierkammer auf Höhe des Stators erstreckt,5 shows an enlargement of FIG. 1 with the mandrel in an intermediate position, the metering chamber extending at the level of the stator,
Fig. 6 den Schnitt gemäß Linie VI-VI in Fig. 5,6 shows the section along line VI-VI in FIG. 5,
Fig. 7 eine Detaildarstellung des Drehteils mit Rotor und Stator in Froschperspektive, zeigend die schneidenartige Gestalt des unteren Dornendes,7 is a detailed view of the rotating part with rotor and stator in a frog perspective, showing the cutting-like shape of the lower mandrel end,
Fig. 8 eine Explosionszeichnung der den Inhalator bildenden Teile, und zwar bezüglich aller Teile im Vertikalschnitt, hinsichtlich des Domes im Teil- schnitt.8 shows an exploded view of the parts forming the inhaler, with respect to all parts in vertical section and with respect to the dome in partial section.
Der in der Zeichnung dargestellte Inhalator 1 ist als bequem mitführbares, kurzstabförmiges Taschengerät realisiert. Formbestimmend ist dabei ein abgesetztes, zylindrisches Gehäuse 2. Das zylindrische, röhrchenartige Gehäuse 2 geht kopfseitig des Inhalators 1 in ein aufgesetztes Mundstück 3 über. Das ist mundgerecht abgeflacht und lässt sich mittels einer becherförmigen Verschlusskappe 4 schützend überfangen.The inhaler 1 shown in the drawing is implemented as a conveniently portable, short-rod-shaped pocket device. A stepped, cylindrical housing 2 determines the shape. The cylindrical, tube-like housing 2 merges into an attached mouthpiece 3 on the head side of the inhaler 1. This is flattened to fit the mouth and can be protected by a cup-shaped cap 4.
Die Verschlusskappe 4 ist als Schraubkappe realisiert. Ein ihr zugeordnetes Innengewinde 5 greift in korrespondierendes Außengewinde 6 an der Mantelwand des Gehäuses 2 ein. Im Ansatzbereich des Mundstückes 3 ist der Verschlusskappe 4 ein Clip 7 angeformt.The closure cap 4 is realized as a screw cap. An internal thread 5 assigned to it engages in corresponding external thread 6 on the outer wall of the housing 2. A clip 7 is formed on the closure cap 4 in the attachment area of the mouthpiece 3.
Fußseitig tritt der Stirnrand der becherförmigen Verschlusskappe 4 anschlagbegrenzend und abdichtend gegen eine Ringschulter 8, erzielt aufgrund des oben genannten Absatzes des zylindrischen Gehäuses 2.On the foot side, the end edge of the cup-shaped cap 4 stops and seals against an annular shoulder 8, achieved due to the above-mentioned shoulder of the cylindrical housing 2.
Den axialen Schraubhub des Gewindeeingriffs 5/6 nutzend, fungiert die Verschlusskappe 4 zugleich als Betätigungshandhabe 9 zur Ausbringung einer pulverförmigen Substanz 10 in reproduzierbaren Teilmengen 10', welche Substanz in einer Vorratskammer 11 des Gehäuses 2 gegebenenfalls nachfüllbar aufgenommen ist. Die jeweils eine Teilmenge 10' an eine außerhalb der Vor- ratskammer 11 liegende Übergangsstelle Ü fördernde Dosiervorrichtung ist in ihrer Ganzheit mit D bezeichnet.Utilizing the axial screw stroke of the thread engagement 5/6, the closure cap 4 also functions as an actuating handle 9 for dispensing a powdery substance 10 in reproducible portions 10 ', which substance can be refilled in a storage chamber 11 of the housing 2. The dosing device conveying a partial amount 10 'to a transition point U located outside the storage chamber 11 is designated in its entirety by D.
Bezüglich des dosierfähigen Gutes handelt es sich um eine medizinische pul- verförmige Substanz 10, bspw. von der Eigenschaft, dass saugstrom- transportfähige Grundkörper (Laktose) als Vehikel oberflächenseitig die daran anhaftenden, mikronisierten Arzneimittel-Feinpartikel tragen.With regard to the meterable product, it is a medicinal powdery substance 10, for example of the property that the suction body transportable basic body (lactose) carries the adhering, micronized pharmaceutical fine particles as a vehicle on the surface.
Der Dosiervorrichtung D nachgeschaltet ist ein sogenannter Dispergierbereich, in welchem durch den Benutzer ein Saugluftstrom S erzeugt wird, der die exakt abgeteilte Teilmenge 10' der Substanz 10 in der Übergabestelle Ü restfrei abträgt. Der zum Mundstück 3 leitende Saugluftkanal trägt das Bezugszeichen 12.Downstream of the metering device D is a so-called dispersing area, in which a suction air flow S is generated by the user which exactly removed portion 10 'of the substance 10 in the transfer point Ü removes completely. The suction air duct leading to the mouthpiece 3 bears the reference number 12.
Den unteren Abschluss der Vorratskammer 11 bildet ein topfförmiger Druckboden 13. Der steht in Richtung des Mundstückes 3 unter Federbelastung. Die entsprechende Druckfeder trägt das Bezugszeichen 14. Die stützt sich mit der fußseitigen Endwindung an einer das Gehäuse 2 dort schließenden Bodenkappe 15 ab. Letztere steht in Rasteingriff zum dort querschnittsgrößeren Abschnitt des Gehäuses 2. Der entsprechende Rastkragen 16 greift in eine passende Ringnut des Gehäuses 2 ein.A pot-shaped pressure base 13 forms the lower end of the storage chamber 11. The pressure base 13 is spring-loaded in the direction of the mouthpiece 3. The corresponding compression spring bears the reference number 14. The base end turn is supported on a bottom cap 15 closing the housing 2 there. The latter is in latching engagement with the section of the housing 2 with a larger cross section there. The corresponding latching collar 16 engages in a suitable annular groove in the housing 2.
Die kopfseitige Endwindung der vorgespannten Druckfeder 14 belastet eine Innenschulter 17 eines Hohlkolbens 18 der kolbenförmigen Einrichtung 13/18.The head-side end turn of the prestressed compression spring 14 loads an inner shoulder 17 of a hollow piston 18 of the piston-shaped device 13/18.
Der gestuft topfförmige Druckboden 13 ist mit der Innenschulter 17 rastverbunden.The stepped pot-shaped pressure plate 13 is snap-connected to the inner shoulder 17.
Der Topfrand des Druckbodens 13 stellt eine Ringlippe 19, die aufgrund ihres gummielastischen Materiales die Wandung der Vorratskammer 21 verlustfrei abstreift.The top edge of the pressure base 13 provides an annular lip 19 which, due to its rubber-elastic material, wipes the wall of the storage chamber 21 without loss.
Sodann geht von der Bodenkappe 15 zentral gelegen ein Stehzapfen 20 aus. Der ist hohl und bildet zusammen mit dem Hohlkolben 18 eine Federkammer 21 für die Druckfeder 14.Then a standing pin 20 extends from the bottom cap 15 in a central position. It is hollow and, together with the hollow piston 18, forms a spring chamber 21 for the compression spring 14.
Mundstückseitig schließt die Vorratskammer 11 mit einem topfförmigen Drehteil 22 ab. Das bildet mit seinem Topfboden die das Gehäuse 2 überfangende Decke 23 der Vorratskammer 11. Im Zentrum der Decke 23 ist eine Führungsöffnung 24 belassen. Diese mittel- oder unmittelbar ausgeführte Führungsöffnung 24 nimmt als Herzstück der Dosiervorrichtung D einen Dorn 25 auf. Der fungiert zufolge entsprechender Ausstattung als eine linear bewegte Dosierkammer 26 für die auszuhebende Teilmenge 10',stellend einen Tauchschieber. Er bewegt sich in der Längsmittelachse x-x des im Wesentlichen rotationssymmetrisch gestalteten Inhalators 1.On the mouthpiece side, the storage chamber 11 closes off with a pot-shaped rotating part 22. With its pot bottom, this forms the ceiling 23 of the storage chamber 11, which covers the housing 2. A guide opening 24 is left in the center of the ceiling 23. This central or direct guide opening 24 receives a mandrel 25 as the heart of the dosing device D. According to the corresponding equipment, it functions as a linearly moving metering chamber 26 for the partial quantity 10 'to be excavated, providing a plunger slide. It moves in the longitudinal center axis xx of the essentially rotationally symmetrical inhaler 1.
Der Dorn 25 bildet an seinem dem Mundstück 3 abgewandten Ende eine schraubendreherklingenartige Zuspitzung aus. Das hat aufgrund der Drehmitnahme des Domes 25 im Zentrumsbereich auflockernde Wirkung in Bezug auf den See aus pulverförmiger Substanz 10. Die praktisch spitzdachartige Klinge 27 zeigt zwei spiegelsymmetrische Schrägflanken und schließt basisseitig an einen zylindrischen Schaft des Domes 25 an. Die Schrägflanken schließen einen Winkel von ca. 60° ein. Der zylindrische Grundquerschnitt des Domes 25 ist im Bereich der Klinge 27 beibehalten (siehe Fig. 7). Der Hubweg der linear bewegten Dosierkammer 26 berücksichtigt in beiden Endstellungen des Domes 25 ein Zuhalten des Querschnitts der Führungsöffnung 24 mit dosierkammer- füllender Rakel- bzw. Abstreichwirkung über die Länge der besagten Öffnung 24.The mandrel 25 forms at its end facing away from the mouthpiece 3 a screwdriver blade-like taper. This has a loosening effect in relation to the lake made of powdery substance 10 due to the rotation of the dome 25 in the center area. The practically pointed roof-like blade 27 shows two mirror-symmetrical sloping flanks and connects to a cylindrical shaft of the dome 25 on the base side. The sloping flanks form an angle of approx. 60 °. The basic cylindrical cross section of the dome 25 is retained in the area of the blade 27 (see FIG. 7). In both end positions of the dome 25, the stroke of the linearly moving metering chamber 26 takes into account a locking of the cross section of the guide opening 24 with a doctoring or wiping action filling the metering chamber over the length of said opening 24.
Das mundstückseitige Ende der Verschlusskappe 4 bildet eine bei Überlast ausklinkende Andockstelle 28 zwischen Dorn 25 und Verschlusskappe 4. Das ver- schlusskappenseitige Rastmittel ist dabei ein ausfederfähiger Hakenkranz.The mouthpiece end of the closure cap 4 forms a docking point 28 which disengages in the event of an overload between the mandrel 25 and the closure cap 4. The locking means on the closure cap side is a spring-loaded hook ring.
Einwärts gerichtete Nasen 29 der federnden Zungen des Hakenkranzes greifen in eine wespentaillenartige Ringnut 30 des Domes 25 ein. Nach außen gerichtet setzt sich die Ringnut 30 in einen Rastkopf 31 fort. Der ist in beiden Richtungen durch die Nasen 29 überwindbar. Die rastkopfbildende Materialanhäufung ist etwa linsenförmig.Inwardly directed lugs 29 of the resilient tongues of the hook ring engage in a wasp waist-like annular groove 30 of the dome 25. Directed outwards, the annular groove 30 continues into a locking head 31. It is in both directions can be overcome by the lugs 29. The build-up of material forming a raster head is approximately lenticular.
Die Nasen 29, respektive ihre Federzungen, sind an einem in die Mundstück- Öffnung 3' ragenden Röhrchen 32 realisiert, welches von der Deckeninnenseite der Verschlusskappe 4 ausgeht. Es wurzelt darin.The lugs 29, or rather their spring tongues, are realized on a tube 32 which projects into the mouthpiece opening 3 'and extends from the inside of the cover cap 4. It is rooted in it.
Der Dorn 25 ist über speichenartig ausgebildete, radiale Flügel 33 mit dem Drehteil 22 drehverbunden. Die Flügel 33 greifen mit ihren freien Endabschnit- ten, den Saugluftkanal 12 querend, in axiale Führungsschlitze 34 -es genügen bereits drei- des Drehteiles 22 ein. Die winkelgleich verteilten Führungsschlitze 34 befinden sich innenseitig der Topfwand 35 des topfförmigen Drehteils 22. Die axialen Führungsschlitze 34 sind überdies von solcher Länge, dass der pulverschöpfende Tauchhub des Domes 25 aus einer Befüllungsebene in der Vor- ratskammer 11 bis in die geschilderte Übergabestelle Ü oberhalb der Decke 23 gewährleistet ist.The mandrel 25 is rotatably connected to the rotating part 22 via radial wings 33 designed in the manner of spokes. The wings 33 engage with their free end sections, crossing the suction air channel 12, in axial guide slots 34 — three of the rotating part 22 already suffice. The guide slots 34, which are distributed at the same angle, are located on the inside of the pot wall 35 of the pot-shaped rotating part 22. The axial guide slots 34 are also of such a length that the powder-plunging plunging stroke of the dome 25 from a filling level in the storage chamber 11 to the transfer point U described above Cover 23 is guaranteed.
Die definierte Entleerungsbereitschaftsstellung der Dosierkammer 26 ergibt sich durch einen vom Mundstück 3 gestellten Zugbegrenzungsanschlag des Domes 25. Der ist das Stirnende einer zurückgestülpten Wand des Mundstücks 3, welches so den Ausgang der Führungsschlitze 34 zuhält.The defined readiness for emptying of the dosing chamber 26 results from a tension limiting stop of the dome 25 provided by the mouthpiece 3. This is the front end of a wall of the mouthpiece 3 that is turned back, which thus closes the exit of the guide slots 34.
Das Mundstück 3 greift über eine Mantelwand 37 verankernd am Hals des Gehäuses 2 an. Dort ist eine Raststelle 38 zwischen beiden Teilen 2, 3 ausgebildet. Es kann sich um eine irreversible Raststelle 38 handeln. Überdies ist, wie erkennbar, die Decke 23 des Drehteiles 22 durch eine Ringschulter 39 abgestützt überfangen. Die Dosierkammer 26 ist als im Wesentlichen senkrecht zur Längsmittelachse x-x verlaufende Querbohrung realisiert. In die Entleerungsbereitschaftsstellung überführt, steht die Dosierkammer 26 im Wirkungsbereich des zentralen Saugluftstromes S. Der Dosierkammer 26 ist ein an den Saugluftkanal 12 anschließender Luftdurchlass 40 zugeordnet. Der ist in der Topfwandung 35 des Drehteiles 22 ausgebildet. Es handelt sich um radiale Bohrungen. Sie erstrecken sich in Bodennähe des topfförmigen Drehteils 22, also auf Höhe oder kurz oberhalb der Oberseite der Decke 23.The mouthpiece 3 engages via a jacket wall 37 anchoring on the neck of the housing 2. There is a locking point 38 between the two parts 2, 3. It can be an irreversible rest area 38. In addition, as can be seen, the ceiling 23 of the rotating part 22 is supported by an annular shoulder 39. The metering chamber 26 is realized as a transverse bore that runs essentially perpendicular to the longitudinal central axis xx. Transferred to the ready-to-empty position, the metering chamber 26 is in the effective range of the central suction air flow S. The metering chamber 26 is assigned an air passage 40 adjoining the suction air channel 12. The is formed in the pot wall 35 of the rotating part 22. These are radial bores. They extend near the bottom of the pot-shaped rotating part 22, that is to say at the height or just above the top of the ceiling 23.
Erkennbar ist beiden offenen Enden der Dosierkammer 26 ein solcher Luftdurchlass 40 mit radialem Abstand vorgelagert. In diesem Zusammenhang besteht eine Vorkehrung dahingehend, dass dem Ende größeren lichten Durchmessers der von einer konischen Querbohrung gebildeten Dosierkammer 26 ein Luftdurchlass 40 kleineren Durchmessers als dieser zugeordnet ist und dem Ende kleineren lichten Durchmessers der Dosierkammer 26 ein Luftdurchlass 40 größeren Durchmessers als dieser. Hierdurch ergibt sich hinter dem Luftdurchlass 40 kleineren Durchmessers ein größerer Unterdruck mit vorrangiger Austrags Wirkung bezüglich der dargebotenen Teilmenge 10'. Gleichwohl findet der Austrag, d. h. Entleeren der Dosierkammer 26 von beiden Enden her statt.Such an air passage 40 can be seen in front of both open ends of the metering chamber 26 at a radial distance. In this connection, there is a provision that an air passage 40 of smaller diameter than this is associated with the end of the larger clear diameter of the metering chamber 26 formed by a conical transverse bore, and an air passage 40 of larger diameter than this is associated with the end of the smaller clear diameter of the metering chamber 26. This results in a larger negative pressure behind the air passage 40 of smaller diameter with a primary discharge effect with respect to the partial amount 10 ′ presented. Nevertheless, the discharge, d. H. Emptying the metering chamber 26 from both ends instead.
Die am topfförmigen, den Dorn 25 abgedichtet führenden Drehteil 22 ausgebildeten Durchlässe 40 sind über einen rückwärtigen Ringraum 41 radial beabstandet noch mit Lufteinlässen 42 strömungsverbunden. Auch die sind als Bohrungen ausgeführt und stellen den Anschluss an die Atmosphäre. Der besagte Ringraum 41 befindet sich zwischen der Außenseite der Topfwand 35 des topfförmigen Drehteils 22 und der Innenseite der Mantelwand 37 des Mundstücks 3. Erkennbar sind die Luftdurchlässe 40 axial versetzt zu den Lufteinlässen 42 angeordnet. Die Lufteinlässe 42 liegen dem Mundstück 3 näher. Die beschriebene räumliche Abstandslage führt zu einer zunächst gegenläufigen Einströmung an eingesaugter Luft mit Anschluss an den Haupt-Saugluftstrom S. Dies und die Tatsache, dass eine in Erstreckungsrichtung der Dosierkammer 26 liegende Komponente des Saugluftstromes S aufgebaut wird, führt dazu, dass die Dosierkammer 26 restfrei entleert wird. Der Benutzer inhaliert jeweils eine präzise Dosis. Die Übergabestelle Ü wird hier von dem Basisabschnitt der Dosierkammer 26 gestellt.The passages 40 formed on the pot-shaped rotating part 22, which seals the mandrel 25, are still connected to the air inlets 42 by radial spacing via a rear annular space 41. They are also designed as bores and connect to the atmosphere. Said annular space 41 is located between the outside of the pot wall 35 of the pot-shaped rotating part 22 and the inside of the jacket wall 37 of the mouthpiece 3. The air outlets 40 can be seen to be arranged axially offset from the air inlets 42. The air inlets 42 are closer to the mouthpiece 3. The spatial spacing described leads to an initially opposing inflow of sucked-in air with connection to the main suction air flow S. This and the fact that a component of the suction air flow S lying in the direction of extension of the suction air flow S is built up means that the dosing chamber 26 is completely free is emptied. The user inhales a precise dose each time. The transfer point U is here provided by the base section of the metering chamber 26.
Förderlich für das entsprechende Entleeren ist die hier entwickelte spezielle Art der Bereithaltung der pulverf örmigen Substanz 10 im Schöpfbereich: Hier sind nämlich Bedingungen geschaffen, die das erstrebte strukturgleiche bzw. homogene „Stopfen" der Dosierkammer 26 sicherstellen, gespeist aus einem durch- gelockerten Umfeld. Hierzu ist vor allem das Drehteil 22 in weiterbildender Weise herangezogen. Es weist einen im oberen Bereich der Vorratskammer 11 agierenden Rotor R auf. Dem ist ein Stator St zugeordnet. Unter Nutzung der Rotation des Drehteiles 22 ergibt sich neben einem Auflockern zugleich ein Pulver in die Dosierkammer 26 eintragend wirkender Schaufeleffekt beim Rückdrehen des Drehteils 22, d. h. beim Abschrauben der Verschlusskappe 4 unter Nutzung derselben als Betätigungshandhabe 9. Das entsprechende Mitschleppen liegt auch bezüglich des über die Flügel 33 radial drehgesicherten Domes 25 vor, so dass es kein Verstellen der Achse der Dosierkammer 26 zu den Luftdurchlässen 40 kommt. Selbst die Mantelwand 37 könnte in die Dreh- fixierung einbezogen sein durch formschlüssige Verbindungsmittel. Im allgemeinen reicht sogar schon eine reibungsschlüssige Mitnahme, bspw. über den den Ringraum 41 zum mundstückseitigen Ende hin zuhaltenden Ringbund 43. Der geht von der Mantelwand der Topfwand 35 aus und liegt mit seiner Randkante an der Innenseite der Mantelwand 37 des Mundstücks 3 an. Wie den Fig. 1 und 4 entnehmbar, geschieht die Drehmitnahme zwischen Mundstück 3 und der sich schraubabhebenden Verschlusskappe 4 durch eine Klauenkupplung 44 zwischen beiden. Die besteht aus einer Längszahnung 45 an der Mantelwand 37 des Mundstücks 3, welche Längszahnung in korrespondierende Zahnlücken 46 an der Innenseite der Verschlusskappe 43 eingreifen.The special way of holding the powdery substance 10 in the scoop area developed here is conducive to the corresponding emptying: conditions are created here which ensure the desired structurally identical or homogeneous “plugging” of the metering chamber 26, fed from a loosened environment. For this purpose, the rotating part 22 is used in a further development, and it has a rotor R which acts in the upper region of the storage chamber 11. A stator St is assigned to it. Using the rotation of the rotating part 22, in addition to loosening, a powder also results in the Dosing chamber 26 has a shovel effect which acts as an input when the rotating part 22 is turned back, ie when the closure cap 4 is unscrewed, using the same as an actuating handle 9. The corresponding entrainment is also present with respect to the dome 25, which is secured against radial rotation via the wings 33, so that there is no adjustment of the axis of the dosing chamber 26 to the air dur 40 comes. Even the jacket wall 37 could be included in the rotational fixation by means of positive connection means. In general, even a frictional entrainment is sufficient, for example via the annular collar 43 which is to be held towards the annular space 41 towards the mouth-side end. It starts from the jacket wall of the pot wall 35 and lies with its edge on the inside of the jacket wall 37 of the mouthpiece 3. 1 and 4 can be seen, the rotational entrainment between the mouthpiece 3 and the screw-off sealing cap 4 takes place by means of a claw coupling 44 between the two. This consists of longitudinal teeth 45 on the outer wall 37 of the mouthpiece 3, which longitudinal teeth engage in corresponding tooth gaps 46 on the inside of the closure cap 43.
Schaufelbildend sind zwei Rotorblätter 47. Die weisen im Grunde sichelförmigen Umriss auf. Die beiden Rotorblätter 47 befinden sich, bezogen auf die Längsmittelachse x-x des Inhalators 1 in diametraler Gegenüberlage. Sie sind an zentrumsbeabstandeten, axial verlaufenden Stegen 48 gehaltert. Die wurzeln in der Unterseite eines Armes oder einer Ringscheibe 49 des den Rotor R stellenden Drehteils 22.Two rotor blades 47 form a blade. They have a basically sickle-shaped outline. The two rotor blades 47 are diametrically opposed with respect to the longitudinal central axis x-x of the inhaler 1. They are held on axially extending webs 48 spaced from the center. They are rooted in the underside of an arm or an annular disk 49 of the rotating part 22 which represents the rotor R.
Die vom Boden bzw. der Decke 23 des Drehteils 22 vorratskammerseitig abragenden, freistehenden Rotorblätter 47 sind in einer solchen diametralen Gegenüberlage positioniert, dass sie in Umlaufrichtung genügend beabstandet sind. Geometrisch nehmen sie im Wesentlichen einen Viertelsektor des kreisrunden Querschnitts der Vorratskammer 11 ein. Es sei auf Fig. 6 verwiesen. Die beiden Rotorblätter 47 weisen je eine sich radial auf das Zentrum des Dornes 25 ausgerichtete Flanke 50 auf sowie je eine rechtwinklig dazu liegende Schaufelflanke 51. Die verläuft in spaltbelassendem Abstand zur Mantelwand des Dornes 25. Der Spalt trägt das Symbol 52. So ist zerreibende Wirkung vermieden. Erkennbar sind die Flanken 50 diametral. Die gemeinsame Diametrale der Flan- ken 50 ist in Fig. 6 mit y-y bezeichnet. Die raumparallelen Schaufelflanken 51 erstrecken sich senkrecht zur Diametralen y-y und raumparallel zur Querbohrungsachse z-z der Dosierkammer 26, welche wiederum mit der Bohrungsachse der Luftdurchlässe 40 zusammenfällt. Die Ringscheibe 49 oder zwei Arme, in denen die Rotorblätter 47 wurzeln, setzt sich über eine Ringwand 53 in die Decke 23 des Drehteils 22 fort.The free-standing rotor blades 47 projecting from the floor or the ceiling 23 of the rotating part 22 on the storage chamber side are positioned in such a diametrical opposite position that they are sufficiently spaced in the circumferential direction. Geometrically, they essentially occupy a quarter sector of the circular cross section of the storage chamber 11. Reference is made to FIG. 6. The two rotor blades 47 each have a flank 50 which is aligned radially with respect to the center of the mandrel 25, and each have a blade flank 51 lying at right angles thereto. The flank 51 remains at a gap leaving the gap to the lateral wall of the mandrel 25. The gap bears the symbol 52 avoided. The flanks 50 can be seen diametrically. The common diametral of the flanks 50 is designated yy in FIG. 6. The spatially parallel blade flanks 51 extend perpendicular to the diametral yy and parallel to the transverse bore axis zz of the metering chamber 26, which in turn coincides with the bore axis of the air passages 40. The annular disc 49 or two arms, in which the rotor blades 47 are rooted, continues via an annular wall 53 into the ceiling 23 of the rotating part 22.
Fig. 5 veranschaulicht besonders deutlich, dass der Rotor R den Stator St so un- tergreift, dass der Stator St als von der Innenwand der Vorratskammer 11 radial einwärts abragender, frei in eine Umlaufbahn 54 des Rotors R reichender Vorsprung ausgebildet ist. Erkennbar wird die Umlaufbahn 54 axial durch die Unterseite der Ringscheibe 49 des Drehteils 22 und die ihr zugewandte Innenseite der Rotorblätter 47 begrenzt. Der umlaufbahnbildende axiale Abstand ist deutlich größer als die in dieser Richtung gemessene Dicke des Stators St, sprich Vorsprunges, beträgt. So kommt es auch hier nicht zu mechanischen Belastungen gegenüber der reibungsempfindlichen, auszugebenden pulver- f örmigen Substanz 10.5 illustrates particularly clearly that the rotor R engages under the stator St in such a way that the stator St is designed as a projection which projects radially inward from the inner wall of the storage chamber 11 and extends freely into an orbit 54 of the rotor R. As can be seen, the orbit 54 is axially delimited by the underside of the annular disk 49 of the rotating part 22 and the inside of the rotor blades 47 facing it. The axial distance forming the orbit is significantly larger than the thickness of the stator St, that is to say the projection, measured in this direction. In this way, too, there is no mechanical stress in relation to the friction-sensitive, powdery substance 10 to be dispensed.
Der Stator St besitzt trapezförmigen Umriss. Seine kreisbogenförmige Basis wurzelt in der Innenwand der Vorratskammer 11. Die Basis ist dabei so bemessen, dass der sich nach radial innen flächenmäßig verjüngende Stator St umrissmäßig unter dem einen Zwischenraum 55 zwischen zwei Rotorblättern 47 belassenden Viertelsektor liegt. Das stellt, wie aus Fig. 6 entnehmbar, zugleich eine ausreichende Montageöffnung für das Einklinken des Stators in die Umlaufbahn 54.The stator St has a trapezoidal outline. Its circular arc-shaped base is rooted in the inner wall of the storage chamber 11. The base is dimensioned such that the stator St, which tapers radially inward in terms of area, lies in outline under the quarter sector leaving an intermediate space 55 between two rotor blades 47. As can be seen from FIG. 6, this also provides a sufficient assembly opening for the stator to latch into the orbit 54.
Der radiale Vorsprung des Stators St nach innen ist von solcher radialer Länge, dass das Plateau des Trapezes ebenfalls spaltbildend vor der Außenseite des Steges 48 endet.The radial projection of the stator St inwards is of such a radial length that the plateau of the trapezoid also ends in a gap-forming manner in front of the outside of the web 48.
Der Schaufeleffekt wird aus Fig. 6 unter Beachtung der Pfeile deutlich. Pfeil a gibt die Rückdrehrichtung des Drehteiles 22 an. Die Schaufelflanken 51 fungieren so als das davor liegende Pulver schiebende Brust. Pfeil b zeigt die annä- hernde Einschaufelrichtung bezüglich des größeren lichten Durchmesser aufweisenden Endes der Dosierkammer 26. Pfeil c gibt die entsprechende Wirkung am anderen Rotorblatt 47 an, hier also auch bezüglich der schaufelnden Wirkung der Schaufelflanke 51. Der Stator St steht dabei gleichsam als ortsfeste Schikane im Weg der Umlaufbahn 54. Die pulverförmige Substanz 10 wird durch die der einlenkend wirkenden Trapezflanke näherliegende Schaufelflanke 51 rasch kammerfüllend verlagert, so dass es, wie schon ausgeführt, zu stets gleichen Füllbedingungen kommt. Die Dosierkammer 26 bewegt sich in mehreren Drehungen ansteigend durch die Zone der Dosiervorrichtung D, bis sie mit ihrer Übergabestelle Ü die Oberseite der Decke 23 des topfförmigen Drehteils 22 erreicht hat.The blade effect is clear from FIG. 6 when the arrows are observed. Arrow a indicates the direction of rotation of the rotating part 22. The blade flanks 51 thus function as the breast pushing the powder in front of it. Arrow b shows the approximate The blade direction with respect to the larger clear end of the metering chamber 26. Arrow c indicates the corresponding effect on the other rotor blade 47, here also with regard to the blade effect of the blade flank 51. The stator St stands, as it were, as a stationary chicane in the path of the orbit 54 The pulverulent substance 10 is rapidly displaced by the blade flank 51 which is closer to the trapezoidal flank which acts as a deflector, so that, as already stated, the same filling conditions always occur. The metering chamber 26 moves in several rotations through the zone of the metering device D until it has reached the top of the ceiling 23 of the pot-shaped rotating part 22 with its transfer point U.
Es wird auch kein dem Dornmantel etwa anhaftendes Pulvergut dosisverfälschend mitgeschleppt, dies zufolge der abstreifend wirkenden Führungsöff- nung 24. Letztere ist nicht unmittelbar vom Drehteil 22 gebildet, sondern durch eine diese Durchtrittsstelle auskleidende Dichtbuchse 56. Letztere besteht aus gummielastischem Material und ist in die Decke 23 über Rastmittel 57 ein- geklipst gehalten. Sie reicht ebenenmäßig oben bis auf Höhe der Oberseite der Ringscheibe 49.Nor is any powder material adhering to the mandrel jacket entrained in a dose-distorting manner, as a result of the wiping-off guide opening 24. The latter is not formed directly by the rotating part 22, but by a sealing bush 56 lining this passage point. The latter is made of rubber-elastic material and is in the ceiling 23 held in place via latching means 57. In terms of level, it extends up to the top of the ring disk 49.
Es gibt aber auch kein radial außenliegendes Schlupfloch für Pulververluste, denn zwischen Drehteil 22 und dem die Vorratskammer 11 bildenden Gehäuse 2 befindet sich gleichfalls ein Dichtelement. Erreicht ist das durch einen zwischen Innenwand der Vorratskammer 11 und dem Drehteil 22 eingesetzten Dichtring 58 aus gummielastischem Material. Besagter Dichtring 58 ist unter Vorspannung eingesetzt. Der Dichtring 58 ist in Ringnuten beider Teile 2, 22 passend eingeschnäppert. Die am Drehteil 22 befindliche Ringnut trägt das Bezugszeichen 59. Sie ist als V-förmige Kerbnut realisiert. Der Öffnungswinkel der im Bereich der Ringwand 53 liegenden Ringnut 59 beträgt ca. 90°. Die Nut- kontur hat zentrierende wie drehführende Wirkung. Die andere, höhengleich dazu liegende Ringnut 60 befindet sich an der Innenseite des Gehäuses 2, und zwar im oberen Eingangsbereich der Vorratskammer 11. Hier liegt bezüglich des Querschnitts der umlaufenden Rmgnut 60 eine halbrunde Gestalt vor. Montageerleichternd ist eine der Ringnut 60 vorgeschaltete, rotationssymmetrische Auflauf schräge 61.But there is also no radially external loophole for powder losses, because between the rotating part 22 and the housing 2 forming the storage chamber 11 there is also a sealing element. This is achieved by a sealing ring 58 made of rubber-elastic material inserted between the inner wall of the storage chamber 11 and the rotating part 22. Said sealing ring 58 is inserted under prestress. The sealing ring 58 is snapped into the ring grooves of both parts 2, 22. The annular groove located on the rotating part 22 bears the reference number 59. It is implemented as a V-shaped notch groove. The opening angle of the annular groove 59 lying in the region of the annular wall 53 is approximately 90 °. The groove contour has a centering and rotating effect. The other annular groove 60, which is at the same height, is located on the inside of the housing 2, specifically in the upper entrance area of the storage chamber 11. Here, the cross-section of the circumferential groove 60 is semicircular. A rotationally symmetrical run-up slope 61 upstream of the annular groove 60 makes installation easier.
Der als Hebedorn gestaltete Dorn 25 kann bezüglich des Volumens seiner Dosierkammer 26 variiert werden, d. h. das Herzstück der Dosiervorrichtung D braucht lediglich ausgetauscht zu werden, um eine andere, genau reproduzierbare Dosierung von Teilmengen 10' zu erzielen.The mandrel 25 designed as a lifting mandrel can be varied in terms of the volume of its metering chamber 26, i. H. the heart of the metering device D only needs to be exchanged in order to achieve a different, exactly reproducible metering of partial quantities 10 '.
Der kolbenartig wirkende Druckboden 13 wird in seiner Beweglichkeit gegenüber dem Zylinderraum, gestellt vom mittleren Abschnitt des Gehäuses 2, nicht beeinträchtigt, da das Gehäuse dort eine im Rücken der Ringlippe 19 liegende Luftausgleichsöffnung 62 besitzt.The piston-like pressure floor 13 is not impaired in its mobility with respect to the cylinder space, provided by the central section of the housing 2, since the housing there has an air compensation opening 62 located in the back of the annular lip 19.
Der topfförmige Druckboden 13 weist eine zentrale, der Vorratskammer 11 abgewandte Einziehung auf. Die ist innen von solcher Tiefe, dass der in Grund- Stellung die Rotorblätter 47 axial nach unten überragende Endabschnitt des Dornes 25 darin unterkommt.The pot-shaped pressure plate 13 has a central indentation facing away from the storage chamber 11. The inside is of such depth that the end section of the mandrel 25 projecting axially downward in the basic position accommodates therein.
Alle offenbarten Merkmale sind (für sich) erfindungswesentlich. In die Offenbarung der Anmeldung wird hiermit auch der Offenbarungsinhalt der zugehö- rigen/ beigefügten Prioritätsunterlagen (Abschrift der Voranmeldung) vollinhaltlich mit einbezogen, auch zu dem Zweck, Merkmale dieser Unterlagen in Ansprüche vorliegender Erfindung mit aufzunehmen. All of the features disclosed are (in themselves) essential to the invention. The disclosure content of the associated / attached priority documents (copy of the prior application) is hereby also included in full in the disclosure of the application, also for the purpose of incorporating features of these documents in claims of the present invention.
Claims
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12167019.4A EP2497513B8 (en) | 2002-09-16 | 2002-09-16 | Inhalator for powdery, in particular medical, substances |
| DK02807961.4T DK1539286T3 (en) | 2002-09-16 | 2002-09-16 | INHALATOR FOR POWDER-DEFINED NAME MEDICAL SUBSTANCES |
| AU2002368278A AU2002368278A1 (en) | 2002-09-16 | 2002-09-16 | Inhaler for powdery, in particular, medical substances |
| JP2004542225A JP4332502B2 (en) | 2002-09-16 | 2002-09-16 | Inhaler for powdered substances |
| PCT/EP2002/010353 WO2004033009A1 (en) | 2002-09-16 | 2002-09-16 | Inhaler for powdery, in particular, medical substances |
| EP12167020.2A EP2497514B8 (en) | 2002-09-16 | 2002-09-16 | Inhalator for powdery, in particular medical, substances |
| US10/526,241 US20060118106A1 (en) | 2002-09-16 | 2002-09-16 | Inhaler for powdery, in particular, medical substances |
| EP02807961.4A EP1539286B1 (en) | 2002-09-16 | 2002-09-16 | Inhaler for powdery, in particular, medical substances |
| US12/098,601 US8342174B2 (en) | 2002-09-16 | 2008-04-07 | Inhaler for powdery substances, in particular medicinal substances |
| US12/098,612 US8342175B2 (en) | 2002-09-16 | 2008-04-07 | Inhaler for powdery substances, in particular medicinal substances |
| US13/685,745 US8978646B2 (en) | 2002-09-16 | 2012-11-27 | Inhaler for powdery substances, in particular medicinal substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2002/010353 WO2004033009A1 (en) | 2002-09-16 | 2002-09-16 | Inhaler for powdery, in particular, medical substances |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10526241 A-371-Of-International | 2002-09-16 | ||
| US12/098,601 Division US8342174B2 (en) | 2002-09-16 | 2008-04-07 | Inhaler for powdery substances, in particular medicinal substances |
| US12/098,612 Division US8342175B2 (en) | 2002-09-16 | 2008-04-07 | Inhaler for powdery substances, in particular medicinal substances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004033009A1 true WO2004033009A1 (en) | 2004-04-22 |
Family
ID=32087917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2002/010353 Ceased WO2004033009A1 (en) | 2002-09-16 | 2002-09-16 | Inhaler for powdery, in particular, medical substances |
Country Status (6)
| Country | Link |
|---|---|
| US (4) | US20060118106A1 (en) |
| EP (3) | EP1539286B1 (en) |
| JP (1) | JP4332502B2 (en) |
| AU (1) | AU2002368278A1 (en) |
| DK (1) | DK1539286T3 (en) |
| WO (1) | WO2004033009A1 (en) |
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| WO2007009872A1 (en) * | 2005-07-18 | 2007-01-25 | Alfred Von Schuckmann | Inhaler for powdery, especially medical substances |
| EP1905472A2 (en) | 2002-09-16 | 2008-04-02 | von Schuckmann, Alfred | Inhaler for powdered, in particular medical, substances |
| EP1905473A3 (en) * | 2004-08-27 | 2008-04-16 | von Schuckmann, Alfred | Inhaler for powdered, in particular medical, substances |
| DE102007056263A1 (en) | 2007-11-22 | 2009-05-28 | Siegfried Generics International Ag | Dosing device for inhaling a powdery substance |
| WO2011110970A1 (en) * | 2010-03-12 | 2011-09-15 | Ranbaxy Laboratories Limited | Single dose dry powder inhaler device |
| US8132565B2 (en) | 2006-03-10 | 2012-03-13 | Alfred Von Schuckmann | Inhaler for powdery substances |
| WO2013079326A1 (en) * | 2011-11-30 | 2013-06-06 | Sanofi Sa | Assembly for an inhalation device, use of an organizing member, and inhalation device |
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| WO2014161901A1 (en) * | 2013-04-03 | 2014-10-09 | Sanofi Sa | Metering element for an inhalation device and assembly for an inhalation device comprising a metering element |
| EP3964207A1 (en) | 2020-09-02 | 2022-03-09 | Christian-Albrechts-Universität zu Kiel | Antiviral pharmaceutical composition for topical administration |
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| EP1539286B1 (en) | 2002-09-16 | 2015-01-21 | Sanofi SA | Inhaler for powdery, in particular, medical substances |
| DE102005029498B4 (en) * | 2005-06-24 | 2007-08-30 | Pari GmbH Spezialisten für effektive Inhalation | Inhalation therapy device |
| JP5570996B2 (en) | 2007-12-14 | 2014-08-13 | エアロデザインズ インコーポレイテッド | Delivery of aerosolizable foodstuffs |
| EP2201977A1 (en) * | 2008-12-23 | 2010-06-30 | Siegfried Generics International AG | Metering device for creating a gas flow with an active agent |
| DE202008017185U1 (en) | 2008-12-30 | 2010-05-12 | Siegfried Generics International Ag | metering |
| US8746244B2 (en) * | 2009-10-02 | 2014-06-10 | Boehringer Ingelheim International Gmbh | Powder inhaler |
| AU2011335408B2 (en) * | 2010-11-30 | 2015-06-11 | Teva Pharmaceutical Industries Ltd. | Inhalers and housing caps for inhalers |
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| RU2647161C2 (en) * | 2012-11-12 | 2018-03-14 | Санофи Са | Unit for inhalation device and application of a sealing element |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1905472A2 (en) | 2002-09-16 | 2008-04-02 | von Schuckmann, Alfred | Inhaler for powdered, in particular medical, substances |
| KR101426379B1 (en) * | 2004-08-27 | 2014-08-05 | 사노피 에스에이 | Inhaler for powdered, particularly medical substances |
| KR101426374B1 (en) | 2004-08-27 | 2014-08-05 | 사노피 에스에이 | Inhaler for powdered, particularly medical substances |
| EP1905473A3 (en) * | 2004-08-27 | 2008-04-16 | von Schuckmann, Alfred | Inhaler for powdered, in particular medical, substances |
| US8327842B2 (en) | 2004-08-27 | 2012-12-11 | Sanofi Sa | Inhaler for powdered, particularly medical substances |
| WO2007009872A1 (en) * | 2005-07-18 | 2007-01-25 | Alfred Von Schuckmann | Inhaler for powdery, especially medical substances |
| US8132565B2 (en) | 2006-03-10 | 2012-03-13 | Alfred Von Schuckmann | Inhaler for powdery substances |
| US8261737B2 (en) | 2006-03-10 | 2012-09-11 | Alfred Von Schuckmann | Inhaler for powdery substances |
| US8573204B2 (en) | 2007-11-22 | 2013-11-05 | Siegfried Generics International | Metering device for the inhalation of a pulverulent substance |
| US9895501B2 (en) | 2007-11-22 | 2018-02-20 | Sanofi-Aventis Deutschland Gmbh | Metering device for the inhalation of a pulverulent substance |
| US8508385B2 (en) | 2007-11-22 | 2013-08-13 | Sanofi-Aventis Deutschland Gmbh | Metering device for the inhalation of a pulverulent substance |
| DE102007056263A1 (en) | 2007-11-22 | 2009-05-28 | Siegfried Generics International Ag | Dosing device for inhaling a powdery substance |
| WO2011110970A1 (en) * | 2010-03-12 | 2011-09-15 | Ranbaxy Laboratories Limited | Single dose dry powder inhaler device |
| CN104093442A (en) * | 2011-11-30 | 2014-10-08 | 赛诺菲股份有限公司 | Components for inhalation devices, use of coordinating components and inhalation devices |
| RU2615276C2 (en) * | 2011-11-30 | 2017-04-04 | Санофи Са | Unit for inhalation device, use of organizing element and inhalation device |
| WO2013079326A1 (en) * | 2011-11-30 | 2013-06-06 | Sanofi Sa | Assembly for an inhalation device, use of an organizing member, and inhalation device |
| CN104093442B (en) * | 2011-11-30 | 2016-11-23 | 赛诺菲股份有限公司 | Components for inhalation devices, use of coordinating components and inhalation devices |
| WO2013092437A1 (en) * | 2011-12-21 | 2013-06-27 | Sanofi Sa | Arrangement for a drug delivery device and method of assembling the same |
| JP2015502226A (en) * | 2011-12-21 | 2015-01-22 | サノフィ・ソシエテ・アノニム | Arrangement for drug delivery device and method of assembling the apparatus |
| CN104114212B (en) * | 2011-12-21 | 2016-11-09 | 赛诺菲股份有限公司 | For the equipment of delivery device and the method that assembles this delivery device |
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| CN104519934A (en) * | 2012-07-31 | 2015-04-15 | 赛诺菲股份有限公司 | Combinations for drug delivery devices |
| AU2013298673B2 (en) * | 2012-07-31 | 2016-09-22 | Sanofi Sa | Arrangement for a drug delivery device |
| JP2015523179A (en) * | 2012-07-31 | 2015-08-13 | サノフィ・ソシエテ・アノニム | Apparatus for drug delivery device |
| WO2014019940A1 (en) * | 2012-07-31 | 2014-02-06 | Sanofi Sa | Arrangement for a drug delivery device |
| CN104519934B (en) * | 2012-07-31 | 2017-07-07 | 赛诺菲股份有限公司 | Combinations for drug delivery devices |
| RU2637627C2 (en) * | 2012-07-31 | 2017-12-05 | Санофи Са | Drug delivery device design |
| WO2014161901A1 (en) * | 2013-04-03 | 2014-10-09 | Sanofi Sa | Metering element for an inhalation device and assembly for an inhalation device comprising a metering element |
| EP3964207A1 (en) | 2020-09-02 | 2022-03-09 | Christian-Albrechts-Universität zu Kiel | Antiviral pharmaceutical composition for topical administration |
| WO2022049177A1 (en) | 2020-09-02 | 2022-03-10 | Christian-Albrechts-Universität Zu Kiel | Antiviral pharmaceutical composition for topical administration |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2497514B8 (en) | 2015-12-16 |
| EP2497513A2 (en) | 2012-09-12 |
| EP2497514A2 (en) | 2012-09-12 |
| US20060118106A1 (en) | 2006-06-08 |
| US20080185000A1 (en) | 2008-08-07 |
| JP2005538816A (en) | 2005-12-22 |
| EP2497513B8 (en) | 2015-12-16 |
| AU2002368278A1 (en) | 2004-05-04 |
| US20130112199A1 (en) | 2013-05-09 |
| US8342174B2 (en) | 2013-01-01 |
| US20080184999A1 (en) | 2008-08-07 |
| EP2497513A3 (en) | 2012-10-17 |
| EP1539286B1 (en) | 2015-01-21 |
| DK1539286T3 (en) | 2015-04-27 |
| US8342175B2 (en) | 2013-01-01 |
| US8978646B2 (en) | 2015-03-17 |
| EP2497514B1 (en) | 2015-10-28 |
| EP2497514A3 (en) | 2012-11-07 |
| EP2497513B1 (en) | 2015-11-04 |
| EP1539286A1 (en) | 2005-06-15 |
| JP4332502B2 (en) | 2009-09-16 |
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